Both BP stations in Waterloo label their low-cost ethanol/87 octane fuel as "regular" both on the pump and on street sign. Please report on GasBuddy as such, since they both sell a true mid-grade 89.5 octane fuel labelled as "Silver" which is considerably more expensive (Mitchell Ave was $3.599 regular and $3.999 silver yesterday). Sign photo http://images.gasbuddy.com/FetchImage.ashx?key=DjghJk%2f%2feW0B8sokzcYRFg%3d%3d&id=5v6lcz8tI8wr7cQnM9dzP9m4XSJbcYc0HsFUr1k1bjPZLVgpogk54A%3d%3d - Pump photo: https://dl.dropboxusercontent.com/u/18074490/IMG_0616.JPG

Hello. Gas Buddy's divisions of reg/mid/prem are based on octane levels 87/89/91+ - with the September change from 89 octane to 87 octane E10/Gasahol in Iowa we have a problem: some stations have re-labelled this as Regular or Unleaded with Ethanol (Kwik Star), but many are incorrectly labelling 87 octane as super or plus (Caseys, HyVee). So most stations have two 87 octane 'regulars' and no mid 89 octane fuels. I'm reporting the less-expensive ethanol blend as regular, and putting the clear gas price (if available) in the comments field, since much like E85 clear gasoline is more of a boutique fuel (less than 10% of sales in Iowa). Check out the IowaStateGasPrices forum - http://www.iowastategasprices.com/Forum_MSG.aspx?master=1&category=1197&topic=359330